A. Unless declined, a court exercising juvenile court jurisdiction shall have exclusive original jurisdiction over cases subject to the provisions of the Uniform Child Custody Jurisdiction and Enforcement Act, pursuant to R.S. 13:1801 et seq., when in interstate custody disputes any of the following occur:
(1) A claim of emergency jurisdiction is made pursuant to R.S. 13:1816.(2) A petition alleges that a child is in need of care as defined by Title VI.(3) A petition otherwise alleges facts that may bring the proceedings within the exclusive original jurisdiction of the juvenile courts pursuant to this Code.B. The district courts shall have exclusive original jurisdiction over all other claims of jurisdiction under the Uniform Child Custody Jurisdiction and Enforcement Act and claims of emergency jurisdiction when declined by the juvenile court.